• Micro Four Thirds System
  • 34mm (35mm Equivalent)
  • Aperture Range: f/1.2 to f/16
  • Four ED Elements, One ED-DSA Element
  • Super HR, EDA, and Aspherical Elements
  • Z Coating Nano
  • MSC High-Speed Imager AF System
  • Internal Focusing, MF Clutch
  • Weather-Resistant Construction
  • Rounded Nine-Blade Diaphragm
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Delivering both the most beautiful bokeh and outstanding resolution.

Beautiful feathered bokeh from the maximum F1.2 aperture

Competitor product of equivalent specifications :
Each flower petal has its own individual bokeh.


M.Zuiko Digital ED 17mm F1.2 PRO at f/1.2 : 
The bokeh of the flower petals blend together

The M.Zuiko Digital ED 17mm F1.2 PRO delivers beautiful feathered bokeh that blends the image from focused sections to out-of-focus sections and provides a smooth impression to the defocused background, providing more depth to the image by making the subject stand out further.


Beautiful feathered bokeh made possible by an ultra-high precision aberration measurement instrument

Beautiful feathered bokeh was achieved thanks to an ultra-high precision aberration measurement instrument developed incorporating high-precision measurement technologies used in advanced microscope development. This measurement instrument was used in research stages to measure the characteristics of historically acclaimed lenses, which would become the base for newly developed lenses. In development stages, the instrument was used to create a lens design that optimizes the level of aberrations, while virtually eliminating all unwanted aberrations.

The M.Zuiko Digital ED 17mm F1.2 PRO adopts a design which intentionally guides light beams passing on the outside edges of the lens to form an image in the foreground, while gradually tilting the lens as the spherical aberration moves towards the outside edge. Intentionally keeping spherical aberrations results in beautiful feathered bokeh.


High resolution from lavish use of special lenses

This lens employs 6 ED lens elements, the most of any M.Zuiko lens, including the newly developed ED-DSA lens, which incorporates the features of both ED (Extra-low Dispersion) and DSA (Dual Super Aspherical) lenses. This construction effectively compensates for unfocused colour bleeding (axial chromatic aberration) which is a common problem on large-diameter lenses, and colour bleeding (magnification chromatic aberration) at the image periphery. It also contributes to creating beautiful feathered bokeh, and achieving superb optical performance which accurately represents points as points even at the widest aperture setting.

The ED-DSA lens which uses ED glass on a DSA lens has been successfully mass-produced for the first time ever by Olympus. This lens delivers the excellent chromatic aberration correction abilities of the ED lens and the spherical aberration, comatic aberration, and astigmatism correction abilities of the DSA lens in a single lens. Incorporating the ED-DSA lens significantly reduces the number of lens elements, resulting in a shorter overall length of the lens body while providing higher performance.

 Lens Construction (15 elements in 11 groups)

 MTF Chart


Excellent close-up shooting ability

 Closest Focusing Distance: 20 cm

This lens has excellent close-up shooting abilities with a closest focusing distance of 20 cm, and shooting magnification of 0.15x (35mm equivalent: 0.3x). You can get closer to subjects to emphasize background bokeh.


Z Coating Nano for clear image quality

1. Air / 2. Nanoparticles / 3. Incident light / 4. Reflected light / 5. Lens / 6. Vapour deposit film

Coating technology is employed which coats the lens surface with a layer of nanoscale size particles that have air in the centre, resulting in a coating with a similar refractive index as air and reduced surface reflection. Ghosts and flaring are significantly reduced for sharp, clear image quality.


Fast & high-precision AF

MSC mechanism making fast and silent AF possible

 1. Focusing lens

1. Stepping motor
2. Screw drive
3. Shaft

Despite being a large diameter F1.2 lens, a lightweight focusing unit is made possible via the MSC (Movie & Still Compatible) mechanism. A screw drive mechanism is used as the core drive system of the MSC mechanism, and a stepping motor is used as the drive motor.


High-precision AF across all focusing points

 DSLR (Phase detection AF)
Current SLRs are limited to F2.8 light fluxes. Because there is no sensor for focusing at F1.2 light fluxes, AF precision is not guaranteed when a lens brighter than F2.8 is attached.

 OM-D E-M1 Mark II (On-chip Phase detection AF)
On-chip Phase Detection AF has no light flux limitations, making high-precision focusing with all-cross AF possible even when a large-diameter F1.2 lens is attached.

On-chip Phase Detection AF used on the OM-D E-M1 Mark II has no light flux limitations, making all-cross AF possible even when a large-diameter F1.2 lens is attached. This provides coverage for the all focusing points to the edges of the image for high-precision focusing.


Eye Priority AF demonstrates its power during portrait shooting

When used in conjunction with Eye Priority AF on the OM-D E-M1 Mark II, it is possible to capture portraits that are sharply focused on the subject’s eyes.


Excellent mobility

Amazingly compact, lightweight system

 Approx. 1,700 g (Camera Body Full-frame DSLR + 35mm Competitor)

 Approx. 964 g (OM-D E-M1 Mark II + M.ZUIKO DIGITAL ED 17mm F1.2 PRO)

This large-diameter, maximum aperture F1.2 lens is compact and lightweight. It is approximately 390 g, and when paired with the OM-D E-M1 Mark II it creates an amazingly compact lightweight system at only approximately 964 g.


Reliable dustproof, splashproof, and freezeproof construction

Hermetic sealing across the entire lens results in highly reliable dustproof, splashproof, and freezeproof performance. You can feel comfortable shooting anywhere, never worrying about dust, rain, or inclement weather.



Controls that meet the demands of pros

 The focus ring is wider and placed towards the front of the lens barrel making comfortable focusing possible even when paired with the OM-D E-M1 Mark II.
1. Focusing

 The L-Fn button is positioned along the edge of where the concave design ends, making it easy to locate even with your eye to the viewfinder.

 The focal length display is larger for easier identification.

 The Manual Focus Clutch mechanism makes instant switching to manual focus possible by pulling the focusing ring towards you.
1. Distance scale

Controls are designed to meet the demands of pros, including a focus ring which provides for comfortable focusing, and an L-Fn button which can be operated as you keep your eye to the viewfinder.


Optional lens accessories

LH-66C Lens Hood

This is a lens hood which can be attached to the M.Zuiko Digital ED 17mm F1.2 PRO lens. The hood release section has been modified so that the lens hood cannot be unintentionally removed.


LC-62F Lens Cap

This is a lens cap that can be attached to the M.Zuiko Digital ED 17mm F1.2 PRO lens. It is compatible with both internal and external tabs.


LSC-0811 Lens Case

This is a lens case for storing the M.Zuiko Digital ED 17mm F1.2 PRO lens. It features excellent cushioning to protect the lens.


PRF-ZD62 PRO Protection Filter

This protection filter is coated with ZERO Coating for reducing flaring due to reflections and ghosts. The edges of the glass are coated black and a satin, glare-reducing black alumite aluminum frame is also used.

  • Pictures are for illustrative purposes only.
  • Screen captures in the monitor are composite images.



Focal Length 17mm (35mm Equivalent Focal Length: 34mm)
Lens Construction 15 elements in 11 groups (1 Super ED lens, 3 ED lenses, 1 ED-DSA lens, 1 EDA lens, 1 Super HR lens, 1 aspherical lens)
Dust & Drip Proof Dustproof and splashproof construction
Focusing System High-speed Imager AF (MSC)
Angle of View 65 degrees
Closest Focusing Distance 0.2 m
Maximum Image Magnification 0.15x (35mm Equivalent Max. Image Magnification: 0.3x)
Minimum Field Size 115.3 x 86.7 mm
Number of Blades 9 (circular aperture diaphragm)
Maximum Aperture f/1.2
Minimum Aperture f/16
Filter Size Diameter 62 mm
Dimensions Ø68.2 x 87 mm
Weight 390g
Box Contents LH-66C Lens Hood, LC-62F Lens Cap, LR-2 Lens Rear Cap, LSC-0811 Lens Case, instruction manual, warranty card

Depth of field

When focusing on a subject, there is an area behind and in front of the focused point that is also in focus. This area is called depth of field. The amount of area behind a focused point will always be greater than the area in front of the focused point regardless of aperture. Depth of field becomes deeper when the focal length is short (wide-angle lens), the focusing distance is long, and aperture is small.

Depth of field tables (focal length : 17mm)

Columns : aperture values / Rows: focusing distance (m) [1]

0.2 0.3 0.4 0.5 0.7 1 2 3 5
1.2 0.199 to 0.201 0.297 to 0.304 0.393 to 0.408 0.487 to 0.514 0.673 to 0.730 0.941 to 1.068 1.757 to 2.325 2.472 to 3.828 3.665 to 7.924 13.259 to ∞
2 0.198 to 0.202 0.295 to 0.306 0.389 to 0.412 0.481 to 0.521 0.658 to 0.748 0.911 to 1.111 1.646 to 2.562 2.252 to 4.540 3.191 to 11.869 8.517 to ∞
2.8 0.198 to 0.202 0.293 to 0.308 0.384 to 0.417 0.473 to 0.531 0.643 to 0.771 0.878 to 1.166 1.535 to 2.906 2.043 to 5.791 2.779 to 28.156 6.045 to ∞
4 0.197 to 0.203 0.290 to 0.311 0.378 to 0.425 0.463 to 0.545 0.622 to 0.805 0.873 to 1.253 1.402 to 3.593 1.809 to 9.531 2.355 to ∞ 4.302 to ∞
5.6 0.196 to 0.205 0.286 to 0.317 0.370 to 0.437 0.450 to 0.567 0.595 to 0.859 0.785 to 1.405 1.251 to 5.443 1.559 to 135.855 1.941 to ∞ 3.066 to ∞
8 0.194 to 0.207 0.280 to 0.324 0.359 to 0.455 0.432 to 0.601 0.561 to 0.953 0.724 to 1.700 1.089 to 21.022 1.309 to ∞ 1.562 to ∞ 2.195 to ∞
11 0.192 to 0.209 0.273 to 0.336 0.345 to 0.484 0.410 to 0.660 0.521 to 1.131 0.653 to 2.454 0.924 to ∞ 1.072 to ∞ 1.230 to ∞ 1.578 to ∞
16 0.189 to 0.214 0.264 to 0.355 0.328 to 0.534 0.383 to 0.769 0.474 to 1.561 0.576 to 7.049 0.766 to ∞ 0.861 to ∞ 0.954 to ∞ 1.141 to ∞
  • 1 The diameter of the permissible circle of confusion is 1/60mm.
  • Specifications are subject to change without notice.


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